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ADS8661IPWR

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Texas Instruments Analog To Digital Converters (ADC), TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdata acquisitionads8661ipwrfactory-2.0.0extractor-text

Verified ADS8661IPWR

by Ray · last 6 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 16 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ADS8661IPWR · TSSOP-16 · 16 pins
  • ✓copper: 16 copper pads, none touching another net
  • ✓datasheet: all 16 pin names found in the 72-page datasheet
  • ✓distributor: lcsc C2669876, digikey 296-45425-2-ND, mouser 595-ADS8661IPWR
  • ✓family: TSSOP-16_4.4x5mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-h5ay725k/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 16 pins = 16 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 16 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ads8661ipwr.kicad_sym✓ ads8661ipwr.kicad_mod✓ ads8661ipwr.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3h ago
viewers ads8661ipwr: viewers · Ray 3h ago
ads8661ipwr-etched.glb Publish 0.1.0 · Ray 3h ago
ads8661ipwr-etched.step ads8661ipwr: factory component page (tier=mfr) · Ray 3h ago
ads8661ipwr-hero.glb ads8661ipwr: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
ads8661ipwr-hero.overlay.json Publish 0.1.0 · Ray 3h ago
ads8661ipwr.glb Publish 0.1.0 · Ray 3h ago
ads8661ipwr.kicad_mod Publish 0.1.0 · Ray 3h ago
ads8661ipwr.kicad_sym Publish 0.1.0 · Ray 3h ago
ads8661ipwr.lbr Publish 0.1.0 · Ray 3h ago
ads8661ipwr.step Publish 0.1.0 · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 3h ago
verification.json Verified: Published by the parts factory: tier mfr, 16 pins · Ray 3h ago

ADS8661IPWR

Texas Instruments · Analog To Digital Converters (ADC) · TSSOP-16

ADS8661IPWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 DGND power_in Digital ground pin. Decouple with the DVDD pin.
2 AVDD power_in Analog supply pin. Decouple with the AGND pin.
3 AGND power_in Analog ground pin. Decouple with the AVDD pin.
4 REFIO bidirectional Internal reference output and external reference input pin. Decouple with REFGND.
5 REFGND power_in Reference ground pin; short to the analog ground plane. Decouple with the REFIO and REFCAP pins.
6 REFCAP output ADC reference buffer decoupling capacitor pin. Decouple with the REFGND pin.
7 AIN_P input Analog input: positive. Decouple with the AIN_GND pin.
8 AIN_GND input Analog input: negative. Decouple with the AIN_P pin.
9 RST input Active low logic input to reset the device.
10 SDI input Dual function: data input pin for serial communication, which also receives chain data in daisy-chain mode.
11 CONVST/CS input Dual-functionality pin: active high CONVST starts conversion on a rising edge, and active low CS takes control of the data bus while SDO-x go to tri-state when CS is high.
12 SCLK input Serial communication clock input pin for the serial interface; all system-synchronous data transfer protocols are timed with respect to SCLK.
13 SDO-0 output Serial communication data output 0.
14 ALARM/SDO-1/GPO output Multi-function output pin that serves as an active high alarm, data output 1 for serial communication, or general-purpose output.
15 RVS output Multi-function output pin for the serial interface; with CS high it reflects the internal ADCST status, and with CS low its behavior depends on the output protocol selected.
16 DVDD power_in Digital supply pin. Decouple with the DGND pin.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-16
Category Data Acquisition
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Analog input voltage AIN_P, AIN_GND to GND -20 20 V AVDD = 5 V 5
Analog input voltage AIN_P, AIN_GND to GND -15 15 V AVDD = floating 5
AVDD to GND or DVDD to GND -0.3 7 V 5
REFCAP to REFGND or REFIO to REFGND -0.3 5.7 V 5
GND to REFGND -0.3 0.3 V 5
Operating free-air temperature TA -40 125 °C 5
Storage temperature Tstg -65 150 °C 5
Analog supply voltage AVDD 4.75 5 5.25 V 5
Digital supply voltage DVDD 1.65 3.3 V 5
Full-scale input span (AIN_P to AIN_GND) VIN -12.288 12.288 V Input range = ±3 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN -10.24 10.24 V Input range = ±2.5 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN -6.144 6.144 V Input range = ±1.5 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN -5.12 5.12 V Input range = ±1.25 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN -2.56 2.56 V Input range = ±0.625 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN 0 12.288 V Input range = 3 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN 0 10.24 V Input range = 2.5 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN 0 6.144 V Input range = 1.5 × VREF 6
Full-scale input span (AIN_P to AIN_GND) VIN 0 5.12 V Input range = 1.25 × VREF 6
AIN_GND operating input range -0.1 0 0.1 V All input ranges 6
Input impedance RIN 1.02 1.2 1.38 MΩ At TA = 25°C, Input range = ±3 × VREF 6
Input impedance RIN 0.85 1 1.15 MΩ At TA = 25°C, Input range = ±2.5 × VREF 6
Input overvoltage protection voltage VOVP -20 20 V AVDD = 5 V, all input ranges 6
Input overvoltage protection voltage VOVP -15 15 V AVDD = floating, all input ranges 6
Differential nonlinearity DNL -0.35 0.1 0.35 LSB All input ranges 7
Integral nonlinearity INL -0.35 0.15 0.35 LSB All input ranges 7
Offset error, bipolar ranges EO -1 0.2 1 mV At TA = 25°C, all bipolar ranges 7
Offset error, unipolar ranges EO -2 0.2 2 mV At TA = 25°C, all unipolar ranges 7
Offset error drift with temperature -3 0.75 3 ppm/°C All input ranges 7
Gain error EG -0.025 0.01 0.025 %FSR At TA = 25°C, all input ranges 7
Gain error drift with temperature -5 1 5 ppm/°C All input ranges 7
Signal-to-noise ratio SNR 73 73.5 dB All input ranges 7
Signal-to-noise + distortion SINAD 72.9 73.4 dB All input ranges 7
Internal reference voltage on REFIO pin VREFIO 4.095 4.096 4.097 V At TA = 25°C 7
Reference voltage to the ADC on REFCAP pin VREFCAP 4.095 4.096 4.097 V At TA = 25°C 7
External reference voltage on REFIO VREFIO_EXT 4.046 4.096 4.146 V REFIO pin configured as an input 7
Analog power-supply voltage AVDD 4.75 5 5.25 V 8
Digital power-supply voltage, operating range DVDD 1.65 3.3 V Operating range 8
Digital power-supply voltage, supply range for specified performance DVDD 2.7 3.3 V Supply range for specified performance 8
Junction-to-ambient thermal resistance RθJA 95.7 °C/W 5
Junction-to-case (top) thermal resistance RθJC(top) 29.3 °C/W 5
Junction-to-board thermal resistance RθJB 41.5 °C/W 5
Junction-to-top characterization parameter ψJT 1.5 °C/W 5
Junction-to-board characterization parameter ψJB 40.8 °C/W 5

CAD (KiCad official)

  • Symbol: ADS8661IPWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: ads8661ipwr-etched.step / ads8661ipwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads8661ipwr.step / ads8661ipwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (72 pp, sha256 f743878a6234825a, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF